... 3.1. Memory Stick FunctionThe internal memory of this modem is 64MB. If using ANIFON software, about 30MBare available ... to carrier or user. Besides, this modem is expandable with Mircro SD card(up to 4G). It ... could be used as modem and memory stick simultaneously 3.2. Data serviceSupport the ... you for free charge. unlocked vodafong wireless usb modem